By-pass tool for door knobs



FIG. 1 is a top-front perspective view of a by-pass tool for door knobs showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a cross-sectional view thereof along line 3-3 of FIG. 2;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a front elevation view thereof;

FIG. 6 is a rear elevation view thereof;

FIG. 7 is a left-side elevation view thereof; and,

FIG. 8 is a right-side elevation view thereof.

The invention is shown together with environmental structure in broken lines in FIGS. 1-8, the environmental structure forming no part of the claimed design. 

CLAIM The ornamental design for a by-pass tool for door knobs, as shown. 